1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Shtirlitz [24]
3 years ago
7

How many solutions are in the equation 3x^2+4x-7=0?

Mathematics
1 answer:
kramer3 years ago
4 0
Hello : 
 the equation 3x^2+4x-7=0 has 2 solutions because : ac <span>< 0
 a = 3         b=4            c= -7
</span>Δ = b²-4ac....... b² ≥ 0    and   -4ac > 0   ..... (ac < 0 )
coclusion : Δ>0.....(2 solutions)
You might be interested in
Evaluate the expression. 6 to the third power + 5( 8 + 15)
olya-2409 [2.1K]

Answer:

5083

Step-by-step explanation:

6^3 + 5(8 + 15)

Simplify the bracket first

6 x 6 x 6 + 5 (23)

216 + 5 (23)

221 (23)

221 x 23 = 5083

6 0
3 years ago
Each person attending a two-day conference receives 4 meal vouchers to use.
Lisa [10]
Part A: Let x and y be the number of persons attending the two-day conference and y be the number of vouchers released. The equation that would best express the given is,
                                             y = 4x

Part B: The number of people attending the conference is determined by dividing the given number of vouchers by 4. The answer is 956. 
6 0
3 years ago
What is -12=2+5v+2v
Xelga [282]

2+5y+2y=-12

2+7v=-12

2+7y-2=-12-2

7y=-14

7y/7=-14/7

y=-2

6 0
3 years ago
Read 2 more answers
A Rope 25 feet long is cut into 3 pieces. The first piece is 2x feet long, the second piece is 5x feet long, and the third piece
Korolek [52]

Answer:

'\/(-_-)\/'

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Mark bought 8 boxes .A week later half of all his boxes were destroyed in a fire there are now only 20 boxes left. With how many
mafiozo [28]

Answer:

32

Step-by-step explanation:

if he has 32 and brought 8 thats a total of 40 because 32+8=40, then if the fire burned half of the boxes 40/2 = 20

7 0
2 years ago
Read 2 more answers
Other questions:
  • Ten boys and twelve girls decide to rent a 16-passenger van and a 6-passenger to drive to a rock concert in a near by city. If t
    9·1 answer
  • Common factors of 50,30,100
    12·2 answers
  • What does the point labeled C represent on the box plot?
    14·1 answer
  • A passenger train left Chicago and traveled toward Elkhart at an average speed of 29 mph. A freight train left 2.4 hours later a
    15·1 answer
  • In which number does the digit 4 have a value that is \dfrac{1}{10} 10 1 ​ start fraction, 1, divided by, 10, end fraction times
    6·1 answer
  • Tanya runs diagonally across a rectangular field that has a length of 40 yards and a width of 30 yards. How far did Tanya run?
    6·1 answer
  • Lea is making a mosaic picture that is 3/4 foot tall and 11/12 foot wide what is the area of her mosaic
    5·1 answer
  • How many solutions does this have? <br><br> y=5x+-2<br> y=5--2x
    8·1 answer
  • Can someone help me? please
    12·2 answers
  • Please answer this friends ?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!